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110, 230, and 450 Series Steering Control Units
4
Cleanliness is extremely important when repairing a steering
control unit. Work in a clean area. Before disconnecting lines,
clean port area of unit thoroughly. Use a wire brush to remove
foreign material and debris from around exterior joints of the unit.
Although not all drawings show the unit in a vise, we recommend that
you keep the unit in a vise during disassembly. Follow the clamping
procedures explained throughout the manual.
1 Clamp unit in vise, meter end up. Clamp lightly on edges of port
face sides (see figure 1). Use protective material on vise jaws.
Housing distortion could result if jaws are overtightened.
2 Remove 5/6 in. cap screws and sealing washers, if used.
3 Remove end cap.
4 Remove seal.
5 Remove meter. Be careful not to drop star.
6 Remove seal.
7 Remove drive spacer. Spacer is not used on some models. Refer
to Parts Information No. 6-321 to determine if spacer is used on your
particular model.
8 Remove drive.
9 Remove spacer plate.
10 Remove seal from housing.
11 Remove housing from vise.
25 mm
[1 inch]
Max.
Gerotor (Meter) End
-002 Steering
Control Unit
with 6 Point
(E10) Drive Screws
or Current Hex
Head Screws
Cap Screw
Seal
Seal washers are not used with 6 point (E10) drive
screws or current hex head screws and -002 end cap
(-002 end cap does NOT have the o-ring groove)
Meter (Gerotor)
Seal
Spacer
Seal Groove
this Side
-002 Unit.
See Note
Inside Front
Cover (Page 2)
Drive
Seal
O-ring Groove
this Side -002
Unit — Old
Spacer Plate
has No O-ring
Groove
Spacer Plate
Disassembly
Figure 1
Figure 2
Figure 3
Figure 4